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Sawant V.J.,Metal Oxide Research Laboratory | Bamane S.R.,Raja Shripatrao Bhagwantrao College Aundh | Kanase D.G.,Metal Oxide Research Laboratory | Ghosh J.,Smt Kasturbai Walchand College
RSC Advances | Year: 2016

The surface engineering of rutile phase TiO2 nanoparticles was performed by carbogenic carbon dots for biological applications. Carbon dots were synthesized by a green hydrothermal method from the ginger herb and TiO2 nanoparticles were synthesized by co-precipitation of TTIP. The carbon dots were successfully coated over the surface of TiO2 nanoparticles and the hydrophobic multi-therapeutic drug curcumin was wet loaded chemically. These nanostructures were characterized using UV-Vis, PL and FTIR spectroscopy and XRD and TEM analysis. The curcumin loaded C dot coated TiO2 nanoparticles have shown higher anticancer potential than unloaded nanoparticles on MCF-7 breast cancer cells and anti-psoriatic potential on HaCaT keratinocyte skin cells. The enhancement in biocompatibility was observed for curcumin after loading on TiO2 nanoparticles, thus destroying the hydrophobicity after C dot surface engineering. © The Royal Society of Chemistry 2016.


Jagadale P.N.,Bharati Vidyapeeth Deemed University | Jagtap P.P.,Metal Oxide Research Laboratory | Joshi M.G.,Meridian | Bamane S.R.,Raja Shripatrao Bhagwantrao Mahavidyalaya
Advanced Materials Letters | Year: 2016

Novel porous bioactive hydroxyapatite (HAP) nanocrystallites were synthesized by auto-combustion technique. The texture properties of the HAP nanopowder were determined through series of characterization techniques. The thermal decomposition behaviour and required sintering temperature of citrate precursor to phase formation of the sample was checked by thermogravimetric analysis (TG-DTA). The hexagonal structure and porous nature of the material were estimated by using X-ray diffraction (XRD) and electron microscopy scanned with different magnifications. Phase formation of HAP was determined by FTIR technique. Transmission electron microscopic (TEM) study indicated the nanostructure of the ceramics, particle size was found to be 30 - 35 nm. These nanoparticles were evaluated for the qualitative and quantitative determination of different elements by energy-dispersive X-ray spectroscopy. In vitro MTT assays showed HAP nanopowder have good biocompatibility and promotes cell proliferation. This nanostructured HAP powder with enhanced biocompatibility can be potentially used as a material for bone tissue engineering. © 2016 VBRI Press.


Bangale S.,Metal Oxide Research Laboratory | Chaugule V.,Determent of Microbiology | Prakshale R.,Metal Oxide Research Laboratory | Bamane S.,Metal Oxide Research Laboratory
Research Journal of Pharmaceutical, Biological and Chemical Sciences | Year: 2013

Semiconductive nanoparticles of bacteria as Pseudomonas aeruginosa with catalyst MgFe2O4 bio film was synthesized by using solution combustion technique. The process was convenient, environment friendly and efficient method. Materials were characterized by TG/DTA, XRD, and TEM. Thick biofilm of Pseudomonas aeruginosa MgFe2O4 was measured by exposing it to reducing economical gases. It was found that the Pseudomonas aeruginosa was sensors exhibited various sensing responses to these gases at different operating temperature. The sensor exhibited a fast response and a good recovery. The biofilm can be used as a new type of gas-sensing material which has a high sensitivity and good selectivity to various gases at low ppm.


Kulal S.R.,Metal Oxide Research Laboratory | Khetre S.S.,Metal Oxide Research Laboratory | Jagdale P.N.,Metal Oxide Research Laboratory | Gurame V.M.,Shri Shivaji Mahavidyalaya | And 4 more authors.
Materials Letters | Year: 2012

Dysprosium doped Co-Zn ferrites were synthesized by sol-gel auto combustion method. These synthesized compounds were characterized by using XRD, SEM, FTIR, EDS, TGA-DTA and TEM. TGA weight loss in the region of 100-200°C and this loss is due to autocatalytic oxidation reduction reactions of nitrates with glycine. The composition Co 0.5Zn 0.5Fe 2-xDy xO 4 (x=0.075) shows fibrous reticulated mesh like morphology. The average grain size increases with increasing the Dy content in the Co-Zn ferrite. The XRD study of Dy doped Co-Zn ferrite shows in Cubic spinel phase. Particle size obtained from TEM analysis was found to be 30-40 nm. The FTIR spectra showed the characteristic of two strong absorption bands at 560 cm -1 corresponds to intrinsic stretching vibrations of the metal at the tetrahedral site and lowest band is observed at 455 cm -1 corresponds to octahedral site. © 2012 Elsevier B.V. All rights reserved.


Khamkar K.A.,Bharati Vidyapeeth Deemed University | Jagadale P.N.,Bharati Vidyapeeth Deemed University | Kulal S.R.,Metal Oxide Research Laboratory | Bamane S.R.,Metal Oxide Research Laboratory | Dhapte V.V.,Bharati Vidyapeeth Deemed University
Journal of Materials Science: Materials in Electronics | Year: 2013

Semiconductive nanostructured LaAlO3 was synthesized by sol-gel auto combustion method using inorganic reagents as La (NO3) 3·6H2O, Al (NO3)3· 9H2O and glycine as a fuel. Structural characterization of prepared sample was characterized by X-ray diffraction technique (XRD), and Fourier transforms infrared spectroscopy (FTIR). The morphology of the particle was found by scanning electron microscopy while elemental composition by energy dispersive X-ray spectroscopy and transmission electron microscopy (TEM) was used to study the nanostructure of the material. XRD pattern reveals the formation of single phase orthorhombic structure without any other phase formation. The system LaAlO3 show porous morphology. Particle size obtained from TEM analysis was found to be ~40 nm. The FTIR spectra showed the characteristic of two strong absorption bands at 656 and 442 cm-1 corresponding to metal-oxygen bond vibrations for the perovskite structure compound. Superhydrophilic nature of LaAlO3 was investigated at room temperature by sessile drop technique. The electrical properties of the compound showed that LaAlO3 exhibits conducting behavior. © 2013 Springer Science+Business Media New York.


Khetre S.M.,Dahiwadi College Dahiwadi Talman | Chopade A.U.,Dahiwadi College Dahiwadi Talman | Khilare C.J.,Dahiwadi College Dahiwadi Talman | Jadhav H.V.,Kisanveer Mahavidyalaya Wai | And 2 more authors.
Journal of Materials Science: Materials in Electronics | Year: 2013

The X-ray diffraction pattern of nanocrystalline LaCrO3 synthesized by combustion method reveals the perovskite phase of the material. The synthesized material has an average crystallite size of 24 nm. The characterization techniques such as X-ray diffraction studies, scanning electron microscopy, transmission electron microscopy etc., were employed to study the average particle size, phase and composition of the material. The effects of constituent phase variation on the dielectric, resistivity and impedance properties are examined. The dielectric dispersion with frequency has been explained on the basis of an electron-hole hopping mechanism, this is responsible for conduction and polarization. From the ac conductivity study, it is confirmed that the conduction in the present material is of small polaron type. Such materials may be useful to fabricate the interconnecting materials for the solar cell, gas sensors, gas transducers, optoelectronic devices, catalyst etc. © 2013 Springer Science+Business Media New York.


Khetre S.M.,Dahiwadi College Dahiwadi | Khilare C.J.,Dahiwadi College Dahiwadi | Shivankar V.S.,Modern College Vashi | Bamane S.R.,Metal Oxide Research Laboratory
Sensors and Transducers | Year: 2012

The preparation, characterization and gas sensing properties of pure nanocrystalline LaCrO 3 mixed oxide semiconductors have been investigated. The mixed oxides were obtained by mixing lanthanum nitrate, chromium nitrate and glycine in the 1:1:2 proportions respectively. Synthesized materials were characterized by X-ray diffraction (XRD), Infrared spectroscopy (IR), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). LaCrO 3 was observed to be sensitive to acetone gas. Upon exposure to acetone gas, the barrier height of LaCrO 3 intergranular regions decreases markedly due to the chemical transformation of LaCrO 3 into well conducting electrons leading to a drastic decrease in resistance. The crucial gas response 200 ppm was found to acetone gas at 200°C and no cross response was observed to other hazardous and polluting gases. The effects of microstructure on the gas response, selectivity, response and recovery of the sensor in the presence of acetone gas were studied and discussed. © 2012 IFSA.


Khamkar K.A.,University of Pune | Bangale S.V.,Metal Oxide Research Laboratory | Dhapte V.V.,University of Pune | Patil D.R.,Bulk and Nano Materials Research Laboratory | Bamane S.R.,University of Pune
Sensors and Transducers | Year: 2012

Semi conductive nanoparticles of LaAlO3 were synthesized by a solution combustion technique. This process is a convenient, environment friendly, inexpensive and efficient for the preparation of LaAlO3nanomaterial. The synthesized material is characterized by Thermo gravimetric Differential analysis (TG/DTA), X-ray Diffraction studied (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Conductance response of the nanocrystalline LaAlO3 pellet is measured by exposing the pellet to reducing gases like ammonia, ethanol, acetone. The sensor exhibited a fast response and a good recovery. The results demonstrated that LaAlO3 can be used as a gas-sensing material which has a high sensitivity and good selectivity 80% to ammonia gas at 50 ppm. © 2012 IFSA.


Bangale S.V.,Metal Oxide Research Laboratory | Prakshale R.D.,Metal Oxide Research Laboratory | Bamane S.R.,Metal Oxide Research Laboratory
Sensors and Transducers | Year: 2012

Semiconductive nanoparticles of CdFe2O4 were synthesized by a solution combustion technique. This process is a convenient, environment friendly, inexpensive and efficient for the preparation of CdFe2O4 nanomaterial. The synthesized material is characterized by Thermo gravimetric Differential analysis (TG/DTA), X-ray Diffraction studied (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Conductance response of the nanocrystalline CdFe2O4 thick film is measured by exposing the film to reducing gases like ethanol, acetone, ammonia, H2S and hydrogen. The sensor exhibited a fast response and a good recovery. The results demonstrated that CdFe2O4 can be used as a gas-sensing material which has a high sensitivity and good selectivity to ethanol gas at 200 ppm. © 2012 IFSA.


Bangale S.V.,Metal Oxide Research Laboratory | Bamane S.R.,Metal Oxide Research Laboratory
Journal of Materials Science: Materials in Electronics | Year: 2013

Semiconductive nanometer-sized ZnCr2O4 material synthesized by a solution combustion method using inorganic reagents as Zn(NO3)3·6H2O, Cr(NO3) 3·6H2O, and glycine as a fuel. This process is a convenient, environment friendly, inexpensive and efficient for the preparation of ZnCr2O4 nanomaterial. The synthesized material is characterized by thermo gravimetric differential analysis, X-ray diffraction studied, energy dispersive X-ray microanalysis studies and transmission electron microscopy techniques. The increase in conductivity with increasing temperature could be attributed to negative temperature coefficient of resistance and semiconducting nature of ZnCr2O4. © 2012 Springer Science+Business Media, LLC.

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